CN206554867U - A kind of tree protector of oil-gas field development - Google Patents
A kind of tree protector of oil-gas field development Download PDFInfo
- Publication number
- CN206554867U CN206554867U CN201621250519.6U CN201621250519U CN206554867U CN 206554867 U CN206554867 U CN 206554867U CN 201621250519 U CN201621250519 U CN 201621250519U CN 206554867 U CN206554867 U CN 206554867U
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- CN
- China
- Prior art keywords
- seal
- sleeve pipe
- central tube
- left end
- oil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model is related to a kind of tree protector of oil-gas field development, including sleeve pipe, seal, nut seat, central tube, connecting seat, pressure break connecting tube and sealing ring, described sleeve pipe inwall is provided with seal groove, sealing ring is provided with the seal groove, multiple through holes are uniformly provided with the wall of described sleeve pipe middle, described sleeve pipe left end is provided with arc spiral groove, seal is installed on the arc spiral groove, the seal left end outer wall is provided with multiple external arc sealing station, the seal left end inwall is provided with multiple Inner arc sealing station, the seal right-hand member endoporus is provided with spring skeleton, described sleeve pipe right-hand member is fixedly connected with nut seat, the nut seat left end is provided with flange connected unit, by being threaded with central tube in the nut seat centre bore, connecting seat is fixedly connected with the central tube right end, pressure break connecting tube is fixedly connected with the right side of the connecting seat.The utility model is simple in construction, easy to operate, safe and reliable, is adapted to promote the use of.
Description
Technical field
The utility model is related to tree protector, is specifically related to a kind of tree protector of oil-gas field development.
Background technology
Production tree is the wellhead assembly that flowing well and machine-pumped oil well etc. are used for exploiting oil, and it is the control of Oil/gas Well topmost
With regulation production of hydrocarbons capital equipment, in fracturing work, if frac pressure be no more than production tree design pressure, so that it may
So that fracturing unit is connected directly between on the wax removal valve on production tree top, by production tree toward fracturing fluid is broken in well, if pressure
Split pressure is more than the design pressure of production tree, cannot be directly connected to wax removal valve by production tree toward breaking fracturing fluid in well,
So do in the presence of very big potential safety hazard, so for fracturing work, even if borehole pressure is less, also to install pressure-bearing in well head
The high production tree of rank, convenient fracturing work in the future, thus considerably increases cost for oil production, therefore, a kind of it is proposed that oil
The tree protector of gas field development.
Utility model content
The technical problems to be solved in the utility model is to overcome the defect of prior art there is provided a kind of oil-gas field development
Tree protector, the problem of solving the production tree for needing installation pressure-bearing rank high because fracturing work pressure is excessive.
In order to solve the above technical problems, the utility model provides following technical scheme：A kind of well head of oil-gas field development
On protector, including sleeve pipe, seal, nut seat, central tube, connecting seat, pressure break connecting tube and sealing ring, described sleeve pipe inwall
It is provided with provided with seal groove, in the seal groove on sealing ring, described sleeve pipe middle wall and is uniformly provided with multiple through holes, described sleeve pipe
Left end is provided with arc spiral groove, the arc spiral groove and is provided with seal, and the seal left end outer wall is provided with
Multiple external arc sealing station, the seal left end inwall is provided with multiple Inner arc sealing station, the seal right-hand member endoporus
Spring skeleton is provided with, described sleeve pipe right-hand member is fixedly connected with nut seat, and the nut seat left end is provided with flange connected unit, described
In nut seat centre bore connecting seat, the connection are fixedly connected with by being threaded with central tube, the central tube right end
Seat right side is fixedly connected with pressure break connecting tube.
Further, seal and coordinate between the sealing ring and seal groove and central tube, the Inner arc sealing station inner ring
Diameter is less than central tube external diameter.
Further, the central tube left end is provided with slope chamfering, and the central tube left end is close to Inner arc through sleeve pipe
Seal at platform, the central tube right-hand member is provided with screw thread, and screw thread coordinates with nut seat centre bore screw thread.
Further, the spring skeleton is pressed into an entirety, the spring spiral shell of the spring skeleton with seal injecting glue
Rotation cooperates with arc spiral groove.
Further, the connecting seat upper end is fixedly connected with pressure gauge, the connecting seat right-hand member on lower wall solid respectively
Surely it is connected with and pulls thick stick.
The utility model has an advantageous effect in that compared with prior art：A kind of wellhead protecting of oil-gas field development
Device,, can be directly through production tree to breaking fracturing fluid in Oil/gas Well in fracturing work using new structure, will not be to recovering the oil
Tree has any influence, it is not necessary to the high level production tree of pressure-bearing is installed specifically for fracturing work, cost branch is greatlyd save
Go out, while this utility structure is simple, it is swift and convenient to operate, substantially increase operating efficiency.
Brief description of the drawings
Fig. 1 is a kind of tree protector structural representation of oil-gas field development of the utility model；
Fig. 2 is the structural representation of production tree.
In figure marked as：1- sleeve pipes, 101- seal grooves, 102- through holes, 103- arc spirals groove, 2- seals, 201-
External arc sealing station, 202- Inner arcs sealing station, 203- spring skeletons, 3- nut seats, 301- flanges connected unit, 4- central tubes,
401- slopes chamfering, 402- screw threads, 5- connecting seats, 501- pressure gauges, 502- pull thick stick, 6- pressure breaks connecting tube, 7- sealing rings, 8- and adopted
Oily tree, 801- wax removals valve, 802- total valves, 803- well heads valve seat, 804- downhole tubulars.
Embodiment
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation
Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only to explain
The utility model, is not used to limit the utility model.
Understood referring to figs. 1 to Fig. 2:A kind of tree protector of oil-gas field development, including sleeve pipe 1, seal 2, screw
Seat 3, central tube 4, connecting seat 5, pressure break connecting tube 6 and sealing ring 7, the inwall of described sleeve pipe 1 are provided with seal groove 101, described close
It is provided with sealing groove 101 on sealing ring 7, the middle wall of described sleeve pipe 1 and is uniformly provided with multiple through holes 102, the left end of described sleeve pipe 1 is provided with
Seal 2 is installed, the left end outer wall of seal 2 is provided with arc spiral groove 103, the arc spiral groove 103
Multiple external arc sealing station 201, the left end inwall of seal 2 is provided with multiple Inner arc sealing station 202, the seal 2
Right-hand member endoporus is provided with spring skeleton 203, and the right-hand member of described sleeve pipe 1 is fixedly connected with nut seat 3, and the left end of nut seat 3 is provided with
It is fixed by being threaded with central tube 4, the right end of central tube 4 in flange connected unit 301, the centre bore of nut seat 3
Connecting seat 5 is connected with, the right side of connecting seat 5 is fixedly connected with pressure break connecting tube 6.
Seal and coordinate between the sealing ring 7 and seal groove 101 and central tube 4, the inner ring of Inner arc sealing station 202 is straight
Footpath is less than the external diameter of central tube 4, and Inner arc sealing station 202 can extrude generation sealing effectiveness with central tube 4, and the central tube 4 is left
End is provided with slope chamfering 401, and the left end of central tube 4 is arrived at Inner arc sealing station 202 through sleeve pipe 1, the right-hand member of central tube 4
Provided with screw thread 402, and screw thread 402 coordinates with the centre bore screw thread of nut seat 3, turns central tube 4, screw thread 402 can drive center
The displacement of pipe 4, the spring skeleton 203 is pressed into an entirety, the spring spiral of the spring skeleton 203 with the injecting glue of seal 2
Cooperated with arc spiral groove 103, the effect of screw thread is served using the spiral of spring, the upper end of connecting seat 5 is fixed
Pressure gauge 501 is connected with, pressure gauge 501 can observe lower wall on pressure size during fracturing work, the right-hand member of connecting seat 5 at any time
On be respectively fixedly connected with and pull thick stick 502, central tube 4 can conveniently be turned by pulling thick stick 502.
Principle and advantage of the present utility model：A kind of tree protector of oil-gas field development, in use, first passing through oil recovery
Whether the pressure in pressure gauge observation Oil/gas Well on tree 8 is normal, when the pressure in Oil/gas Well is normal, opens wax removal valve
801 and total valve 802, the utility model is inserted in production tree 8, seal 2 can be through production tree 8 to downhole tubular 804 in, so
Flange connected unit 301 is connected with the top of wax removal valve 801 afterwards, thick stick 502, center of rotation pipe 4, the rotational band of screw thread 402 is pulled
Dynamic central tube 4 is toward bottom offset, and central tube 4 can enter in the Inner arc sealing station 202 of seal 2, due to Inner arc sealing station 202
Inner ring diameter is less than the external diameter of central tube 4, and central tube 4 will be outwardly against Inner arc sealing station 202 and external arc sealing station
201, external arc sealing station 201 will combine closely with downhole tubular 804, form sealing and coordinate, thus by the sky in production tree 8
Between and the space of downhole tubular 804 separate, be connected at pressure break connecting tube 6 with fracturing unit, fracturing unit is interior to downhole tubular 804 to be beaten
During fracturing fluid, influence will not be produced on production tree 8, during fracturing fluid is broken, can be observed and pressed by pressure gauge 501 at any time
Whether normal split operational pressure, after fracturing work is finished, up turn central tube 4, Inner arc sealing station is left in the bottom of central tube 4
202, pressure is by the pressure balance in through hole 102 and downhole tubular 804 in production tree 8, after pressure is normal, from wax removal valve
The utility model is pulled down in 801 upper ends, closes total valve 802 and wax removal valve 801, operation is finished, and the utility model is simple in construction,
It is easy to operate, it is safe and reliable, it is adapted to promote the use of.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
Any modifications, equivalent substitutions and improvements made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (5)
1. a kind of tree protector of oil-gas field development, including sleeve pipe（1）, seal（2）, nut seat（3）, central tube（4）、
Connecting seat（5）, pressure break connecting tube（6）And sealing ring（7）, it is characterised in that：Described sleeve pipe（1）Inwall is provided with seal groove
（101）, the seal groove（101）It is interior to be provided with sealing ring（7）, described sleeve pipe（1）Multiple through holes are uniformly provided with the wall of middle
（102）, described sleeve pipe（1）Left end is provided with arc spiral groove（103）, the arc spiral groove（103）On sealing is installed
Body（2）, the seal（2）Left end outer wall is provided with multiple external arc sealing station（201）, the seal（2）Left end inwall
It is provided with multiple Inner arc sealing station（202）, the seal（2）Right-hand member endoporus is provided with spring skeleton（203）, described sleeve pipe
（1）Right-hand member is fixedly connected with nut seat（3）, the nut seat（3）Left end is provided with flange connected unit（301）, the nut seat（3）
By being threaded with central tube in centre bore（4）, the central tube（4）Connecting seat is fixedly connected with right end（5）, the company
Joint chair（5）Right side is fixedly connected with pressure break connecting tube（6）.
2. a kind of tree protector of oil-gas field development according to claim 1, it is characterised in that the sealing ring
（7）With seal groove（101）And central tube（4）Between seal coordinate, the Inner arc sealing station（202）Inner ring diameter is less than center
Pipe（4）External diameter.
3. a kind of tree protector of oil-gas field development according to claim 1, it is characterised in that the central tube
（4）Left end is provided with slope chamfering（401）, the central tube（4）Left end passes through sleeve pipe（1）To Inner arc sealing station（202）Place, institute
State central tube（4）Right-hand member is provided with screw thread（402）, and screw thread（402）With nut seat（3）Centre bore screw thread coordinates.
4. a kind of tree protector of oil-gas field development according to claim 1, it is characterised in that the spring skeleton
（203）With seal（2）Injecting glue is pressed into an entirety, the spring skeleton（203）Spring spiral and arc spiral groove
（103）Cooperate.
5. a kind of tree protector of oil-gas field development according to claim 1, it is characterised in that the connecting seat
（5）Upper end is fixedly connected with pressure gauge（501）, the connecting seat（5）It has been respectively fixedly connected with right-hand member on lower wall and has pulled thick stick
（502）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621250519.6U CN206554867U (en) | 2016-11-22 | 2016-11-22 | A kind of tree protector of oil-gas field development |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621250519.6U CN206554867U (en) | 2016-11-22 | 2016-11-22 | A kind of tree protector of oil-gas field development |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206554867U true CN206554867U (en) | 2017-10-13 |
Family
ID=60369883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621250519.6U Expired - Fee Related CN206554867U (en) | 2016-11-22 | 2016-11-22 | A kind of tree protector of oil-gas field development |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206554867U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111425150A (en) * | 2020-03-30 | 2020-07-17 | 中国石油集团渤海石油装备制造有限公司 | Special righting device of oil gas well head fracturing protector |
-
2016
- 2016-11-22 CN CN201621250519.6U patent/CN206554867U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111425150A (en) * | 2020-03-30 | 2020-07-17 | 中国石油集团渤海石油装备制造有限公司 | Special righting device of oil gas well head fracturing protector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171013 Termination date: 20181122 |